--- ./nimbus/gtk-3.0/gtk-widgets.css.orig	2014-04-08 13:56:58.000000000 +0000
+++ ./nimbus/gtk-3.0/gtk-widgets.css	2014-05-01 10:03:07.000000000 +0000
@@ -1573,7 +1573,7 @@
 
     -unico-border-gradient: -gtk-gradient (linear,
                     left top, left bottom,
-                    from (shade (theme_@selected_bg_color, 1.0)),
+                    from (shade (@theme_selected_bg_color, 1.0)),
                     to (shade (@theme_selected_bg_color, 1.15)));
 
     -unico-inner-stroke-color: shade (@theme_selected_bg_color, 0.84);
